body{
  width: 100%;
  padding: 0;
  margin: 0;
  background-color: #fff;
  font-family: "Helvetica Neue", Helvetica, STHeiTi, sans-serif;
  letter-spacing:0;
  color: #333;
}
ul,li,a,h1,h2,h3,h4,h5,h6,p,input,textarea,span{margin: 0;padding: 0;font-weight: normal; list-style:none;text-decoration: none;}

/*去除右侧滚动条*/
::-webkit-scrollbar {
  display: none;
  -ms-overflow-style: none;
}
/*clearfix，清除浮动*/
.clearfix::before,
.clearfix::after{
    content: "";
    height: 0;
    line-height: 0;
    display: block;
    visibility: hidden;
    clear: both;
}